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-4=-1-p/2
We move all terms to the left:
-4-(-1-p/2)=0
We add all the numbers together, and all the variables
-(-p/2-1)-4=0
We get rid of parentheses
p/2+1-4=0
We multiply all the terms by the denominator
p+1*2-4*2=0
We add all the numbers together, and all the variables
p-6=0
We move all terms containing p to the left, all other terms to the right
p=6
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